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MGIMS WARDHA MGIMS WARDHA Solved Paper-2015

  • question_answer
    The molar heat capacity at constant volume of gaseous mixture contained 2 moles of each of two ideal gases\[X(CLV,\text{ }m=\frac{3}{2}R)\]and\[Y({{C}_{V}},m=\frac{5}{2}R)\]

    A)  2R                                         

    B)  3R

    C)  4R                                         

    D)  8R

    Correct Answer: A

    Solution :

                    Average \[{{C}_{V}},m=\frac{{{n}_{1}}{{C}_{V}},{{m}_{1}}+{{n}_{2}}{{C}_{V}},{{m}_{2}}}{{{n}_{1}}+{{n}_{2}}}\] \[=\frac{2\times \frac{3}{2}R+2\times \frac{5}{2}R}{2+2}=2R\]


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